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Solder Alloy 704 vs. C60800 Bronze

Solder alloy 704 belongs to the otherwise unclassified metals classification, while C60800 bronze belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is solder alloy 704 and the bottom bar is C60800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
110
Elongation at Break, % 30
55
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 19
46
Tensile Strength: Ultimate (UTS), MPa 55
390

Thermal Properties

Latent Heat of Fusion, J/g 62
220
Melting Completion (Liquidus), °C 240
1060
Melting Onset (Solidus), °C 220
1050
Specific Heat Capacity, J/kg-K 220
410
Thermal Conductivity, W/m-K 50
80
Thermal Expansion, µm/m-K 22
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
17
Electrical Conductivity: Equal Weight (Specific), % IACS 15
18

Otherwise Unclassified Properties

Density, g/cm3 7.5
8.6
Embodied Carbon, kg CO2/kg material 19
2.9
Embodied Energy, MJ/kg 320
48

Common Calculations

Stiffness to Weight: Axial, points 3.8
7.3
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 2.1
13
Strength to Weight: Bending, points 4.3
14
Thermal Diffusivity, mm2/s 30
23
Thermal Shock Resistance, points 3.5
14

Alloy Composition

Aluminum (Al), % 0 to 0.0010
5.0 to 6.5
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0.020 to 0.35
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.050
92.5 to 95
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.1
Lead (Pb), % 0 to 0.070
0 to 0.1
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 4.8 to 5.2
0
Tin (Sn), % 94.3 to 95.2
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.5